OpenCode Go quota usage inconsistency: Monthly usage percentage exceeds Weekly usage percentage with mismatched cost statistics

Description

Possible OpenCode Go quota metering logic bug and cost accounting mismatch when using deepseek-v4-flash (go)

I observe abnormal inconsistent quota percentages on my OpenCode Go subscription dashboard, alongside mismatches between the billed cost chart and quota consumption:

Current dashboard metrics:

• Rolling Usage: 15%
• Weekly Usage: 65%
• Monthly Usage: 58%

According to the OpenCode Go quota rules, the monthly usage percentage should never be lower than weekly usage percentage at any point in the billing cycle. Right now my Monthly Usage (58%) < Weekly Usage (65%), which is logically impossible and indicates broken quota calculation logic.

Meanwhile, I can see the cost trend on my usage chart:

• Aug 16: deepseek-v4-flash (go): $1.87
• Aug 17: deepseek-v4-flash (go): $8.42

My workload only routed traffic through opencode-go/deepseek-v4-flash during this period. The consumed quota percentage does not align with the dollar amount shown in the cost breakdown chart.

Could you investigate two issues:

1. Why Monthly Usage percentage is lower than Weekly Usage percentage; this breaks the expected rolling/period quota logic.
2. Verify whether the quota consumption meter uses identical pricing data as the daily cost graph for deepseek-v4-flash. There appears to be a mismatch between the dollar value displayed in the cost chart and the quota percentage consumed.

I can supply all attached screenshots, raw timestamps and token usage logs for further debugging if required.

Plugins

No plugins were used

OpenCode version

1.18.18.0

Steps to reproduce

1. Subscribe to OpenCode Go
2. Send continuous requests to opencode-go/deepseek-v4-flash
3. Observe the quota percentage panel and daily cost chart

Screenshot and/or share link

Operating System

Windows 11

Terminal

No response

No source files or tests are named; start by reproducing the dashboard and cost-chart behavior in OpenCode 1.18.18.0 with opencode-go/deepseek-v4-flash. Compare weekly and monthly quota percentages with the daily cost values and supplied usage logs. Done means the quota ordering and cost accounting are consistent, or the remaining discrepancy is documented with reproducible evidence.